[2023] Pass CompTIA XK0-004 Test Practice Test Questions Exam Dumps [Q240-Q260]

QUESTION 240
A systems administrator wants to disable the Linux Kernel WatchDog Timer Driver for security purposes.
Which of the following will accomplish this task?

QUESTION 241
Given the output below:

Which of the following commands can be used to remove MyPhoto.jpg from the current directory?

QUESTION 242
A systems administrator is attempting to access a server by SSH. The Linux administrator ensures that the SSH keys on the remote server were unable to connect. The following error message is being displayed:

Which of the following needs to be changed on order for the administrator to access the server via SSH?

QUESTION 243
After installing a new web server, you are unable to browse to the default web page.
INSTRUCTIONS
Review all the command output and select the command needed to remediate the issue.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

QUESTION 244
An administrator is writing a Bash script to audit SSH logins. Which of the following logs would the administrator parse to find the needed information?

QUESTION 245
A Linux system is running normally when the systems administrator receives an alert that one application spawned many processes. The application is consuming a lot of memory, and it will soon cause the machine to become unresponsive. Which of the following commands will stop each application process?

QUESTION 246
A Linux administrator wants to load the KVM module into the kernel. Which of the following commands should the administrator use?

QUESTION 247
Ann, a junior Linux administrator, needs to copy software from her local machine to assist in developing a software application on a remote machine with the IP address 192.168.3.22. The file needs to be placed on the
/tmp directory. After downloading the RPM to the local machine, which of the following commands would be BEST to use to copy the software?

QUESTION 248
An administrator is troubleshooting an application that has failed to start after the server was rebooted. Noticing the data volume is not mounted, the administrator attempts to mount it and receives this error:

Upon checking the logical volume status, the administrator receives this information:

Which of the following can be said about the data logical volume, and how can this problem be resolved?

QUESTION 249
A user attempts to use the mount -a command but gets the following error:
mount: mount point /mnt/test does not exist
Which of the following commands best describes the action the Linux administrator should take NEXT?

QUESTION 250
An administrator needs a bootable USB for installing a new Linux machine. The administrator downloaded the image file and named it as Linux_OS.iso in the /tmp directory. Which of the following commands will accomplish that task?

QUESTION 251
A user submitted a ticket stating that the development environment is reporong the device does not have any space left. The user’s application creates a lot of small files and does not remove these files when the application crashes. Given the following output:

Which of the following is the MOST likely cause for the error message indicating a lack of space?

QUESTION 252
A user is reporting unusual slowness when trying to transfer a large file to an NFS server from a workstation.
The administrator runs tracepath and gets the following output:

Which of the following BEST describes the issue and a possible solution?

QUESTION 253
A Linux administrator receives a call from the network operations team that one of the database applications is down on a Linux server. The Linux server is configured with RAID 1 for redundancy, and the array /dev/md0 consists of two devices called /dev/sda1 and /dev/sdb1. After looking at the status of the RAID 1 array in the /proc/mdstat file, the administrator discovers the RAID 1 array is degraded and the disk /dev/sdb1 on which the database application was installed appears to have failed.

Which of the following steps should the administrator take to remove the device /dev/sdb1 from the RAID array md0? (Choose two.)

QUESTION 254
An administrator was updating several systems and received the following warning for each one: No support Locale en_US.UTF-8. Which of the following should the administrator run to eliminate this warning?

QUESTION 255
A user, jsmith, needs access to database files located on a server. Which of the following will add jsmith to the
“dba” group and preserve existing group memberships?

QUESTION 256
An administrator receives a warning about a file system filling up, and then identifies a large file located at /tmp/largelogfile. The administrator deletes the file, but no space is recovered on the file system.
Which of the following commands would BEST assists the administrator in identifying the problem?

QUESTION 257
A junior systems is configuring localization option environment variables. The administrator is given a checklist of tasks with the following requirements:
View current settings of the LC_ALL environment variable only.
Modify the LANG environment variable to US English Unicode.
Given this scenario, which of the following should be performed to meet these requirements? (Choose two.)

QUESTION 258
A Linux server needs to be accessed, but the root password is not available.
Which of the following would BEST allow an administrator to regain access and set a new known password at the same time?

QUESTION 259
A user receives an access_denied error when trying to modify a file, even though the file permissions are set to 777. Which of the following commands should be used to view additional file permissions?

QUESTION 260
An administrator wrote the following script, but it failed:

Which of the following is MOST likely the error in the script?